Have a look at Russias interference in the previous US election. This is what they did, but manually. To be able to scale and automate it is huge.
The exact balance must be orchestrated by a human.
I think neural nets could help finding fake news and factual mistakes. Then it wouldn't matter who wrote it if it is helpful and true.
Regarding photo news there has been quite a lot of scandals to the point that I’d guess the touchups is more or less accepted.
To hammer the point home I let them retouch a picture by themselves to see what is possible even for a completely untrained manipulator.
It was eye-opening - one of the things that should absolutely be taught in school but isn't.
Namely, critical thinking?
As an extreme example: would you ever checked 20 years ago a newspaper text to know if it was generated by an AI or by a human? Obviously no, because you didn't know of any AI that could do that.
I am lamenting that teenagers were, in this day and age, surprised at what can be done with Photoshop. And that let loose on the appropriate software were surprised at what can be altered and how easily.
My point is suggesting this may be so because people have not been taught how to think for themselves and accept things (in this case female images) 'as is', without a hint of curiosity. It is also a problem but at the other end of the stick, with many young people I work with considering Wikipedia to be 100% full of misinformation and fake news.
There is a secondary aspect of becoming aware that society has agreed on beauty standards (different for different societies) and PS being used as a means to adhere to these standards.